Automation compatible spring assisted single part tamper resistant shutter mechanism for wiring device product
a technology of tamper-resistant shutter mechanism and wiring device, which is applied in the direction of coupling device connection, two-part coupling device, electrical apparatus, etc., can solve the problems of high rejection rate during the automated production process, object could become a live conductor and present an electrocution hazard, and the production of such shutter assemblies presents challenges
Active Publication Date: 2022-10-11
EATON INTELLIGENT POWER LIMITED
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- Application Information
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Benefits of technology
The patent text discusses devices to prevent objects from accessing live electrical terminals through electrical sockets and to prevent misalignment of electrical plug prongs during insertion. The technical effects of the patent text include the prevention of electrical outlet damage, the prevention of electrical shocks, and the improvement of electrical safety in general. The patent also describes the use of NEMA electrical plugs and the installation of shutter assemblies to prevent objects from accessing live electrical terminals.
Problems solved by technology
Without a shutter assembly, if an object were able to electrically connect to only the hot conductor or only the neutral conductor of the power supply, the object could become a live conductor and present an electrocution hazard.
However, producing such shutter assemblies presents challenges, as shutter assemblies comprise several components, some of which are fairly minute in size, that require precise alignment for proper assembly.
The quantity and relatively small size of the components required to produce a shutter assembly, as well as the alignment requirements, can complicate automation of the shutter manufacturing process, resulting in relatively high rejection rates during the automated production process and pronounced production inefficiencies.
Method used
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[0070]Directional phrases used herein, such as, for example, left, right, front, back, top, bottom and derivatives thereof, relate to the orientation of the elements shown in the drawings and are not limiting upon the claims unless expressly recited therein.
[0071]As used herein, the singular form of “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise.
[0072]As used herein, the statement that two or more parts or components are “coupled” shall mean that the parts are joined or operate together either directly or indirectly, i.e., through one or more intermediate parts or components, so long as a link occurs. As used herein, “directly coupled” means that two elements are directly in contact with each other. As used herein, “fixedly coupled” or “fixed” means that two components are coupled so as to move as one while maintaining a constant orientation relative to each other. As used herein, “movably coupled” means that two components are coupled s...
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A shutter assembly for a tamper-resistant electrical receptacle includes a shutter, a base clip, and a spring. The shutter is coupled at one end by the spring to the rear side of an individual outlet cover of the electrical receptacle, and two multi-sloped blocking mechanisms of the shutter block access to the live electrical terminals from the hot and neutral slots of the outlet cover when a plug is not inserted into the outlet. The shutter comprises a fulcrum that rests on the base clip, which allows one end of the shutter to interlock with divots formed in the rear side of the outlet cover and the other end of the shutter to interlock with the base clip in order to prevent access to the live electrical terminals when an object is inserted into only one of the hot or neutral slots of the individual outlet cover, or when an object is inserted into the outlet cover at a tilted angle.
Description
BACKGROUNDField[0001]The disclosed concept relates generally to electrical sockets and in particular, to devices for preventing objects other than standardized plugs from accessing live electrical terminals through electrical sockets and to devices for preventing misalignment of electrical plug prongs during insertion of electrical plugs into electrical sockets.Background Information[0002]Electrical outlets enable devices and appliances with electrical plugs to connect to utility power sources in residential, commercial, and industrial settings. A utility customer site receives utility power from the electrical grid via a distribution line that is electrically connected to a main service panel at the customer site. The main service panel at the customer site includes a number of main circuit breakers (each of which is referred to hereinafter as a “site main breaker”), and conductors installed throughout the utility customer site are used to electrically connect electrical outlets to...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01R13/453H01R103/00H01R24/76H01R25/00
CPCH01R13/4534H01R13/4532H01R24/76H01R25/006H01R2103/00H01R24/78
Inventor SATYANARAYANAN, KARTHIKGOUHL, ERIK JEFFREYKARPE, RAJZHANG, FENGGUOSAWAI, NILESH
Owner EATON INTELLIGENT POWER LIMITED